The battery failures resulted in release of flammable electrolytes, heat damage, and smoke on two Model 787 airplanes.

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But based on preliminary information, the FAA decided that continued flight was too dangerous in light of the "release of flammable electrolytes, heat damage and smoke" that resulted from the pair of incidents earlier this month.

WSJ: All Boeing Dreamliners Are Grounded

It is still unclear whether the hydrogen represents the release of water by the heat of the impact, or whether it simply sheds light on the way that water is formed on the Moon from its chemical constituents.

BBC: Nasa reveals new information about moon probes crash sites

In 1998, the 19-year-old established herself as a bold new artist with the release of her debut album, Turn the Heat Up!

NPR: Indigo Girls And Shemekia Copeland In Concert

The 24-year-old completed just 200m of his heat before retiring, prompting the International Association of Athletics Federations (IAAF) to release a statement that appeared to eject him from the Games.

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